45991485 has 12 divisors (see below), whose sum is σ = 79718652. Its totient is φ = 24528768.

The previous prime is 45991471. The next prime is 45991501. The reversal of 45991485 is 58419954.

It can be written as a sum of positive squares in 2 ways, for example, as 5503716 + 40487769 = 2346^2 + 6363^2 .

It is not a de Polignac number, because 45991485 - 2⁵ = 45991453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1022033 = 45991485 / (4 + 5 + 9 + 9 + 1 + 4 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 45991485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510972 + ... + 511061.

It is an arithmetic number, because the mean of its divisors is an integer number (6643221).

Almost surely, 2^45991485 is an apocalyptic number.

45991485 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45991485 is a deficient number, since it is larger than the sum of its proper divisors (33727167).

45991485 is a wasteful number, since it uses less digits than its factorization.

45991485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022044 (or 1022041 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 45991485 is about 6781.7022199445. The cubic root of 45991485 is about 358.2826772934.

It can be divided in two parts, 4599 and 1485, that added together give a square (6084 = 78²).

The spelling of 45991485 in words is "forty-five million, nine hundred ninety-one thousand, four hundred eighty-five".